Home / 45,129.84-67,678.56-15,539.73

Finding the Fourth Proportional to 45,129.84, 67,678.56 and 15,539.73

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Solution

The fourth proportional to 45,129.84, 67,678.56 and 15,539.73 is: 23,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.84 : 67,678.56 = 15,539.73 : x
  2. Step 2: Convert to fraction form
    45,129.84/67,678.56 = 15,539.73/x
  3. Step 3: Cross multiply
    45,129.84x = 67,678.56 × 15,539.73
  4. Step 4: Simplify right side
    45,129.84x = 1,051,706,549.19
  5. Step 5: Solve for x
    x = 1,051,706,549.19/45,129.84
  6. Step 6: Final answer
    x = 23,304.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.